state gov Haryana Police Constable Mock Test 2024 General Science Chemistry

CO2 के 20 g को मोल मे कैसे व्‍यक्‍त करेंगे।(परमाणु  द्रव्‍यमान C = 12, O = 16)

1
4 मोल
2
2 मोल
3
1 मोल
4
0.45 मोल
5
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